.png){kind=logo}
1. A nurse is conducting a systematic review of randomized
controlled trials (RCTs) on the effectiveness of
acupuncture for chronic pain. She searches several
databases and finds 20 relevant RCTs. She then assesses
the quality of each RCT using a standardized tool. What is
the purpose of this step?
a) To eliminate bias in the selection of studies
b) To synthesize the results of the studies
c) To determine the applicability of the findings to practice
d) To evaluate the internal validity of the studies*
Rationale: Evaluating the internal validity of the studies is
important to assess how well the RCTs were designed and
conducted, and whether they minimized the risk of
confounding factors, selection bias, measurement error, and
other threats to validity.
2. A nurse is reading a research article on the effects of
music therapy on anxiety and depression in palliative care
patients. The article reports that music therapy significantly
reduced anxiety and depression scores compared to a
control group. The nurse wants to know if the results are
clinically meaningful, not just statistically significant.
Which of the following measures can help her answer this
question?
a) P-value
b) Confidence interval
c) Effect size*
.png)